65280452061888 has 504 divisors, whose sum is σ = 221745415741200. Its totient is φ = 18302940020736.

The previous prime is 65280452061887. The next prime is 65280452061889. The reversal of 65280452061888 is 88816025408256.

65280452061888 is a `hidden beast` number, since 6 + 5 + 2 + 8 + 0 + 4 + 5 + 2 + 0 + 618 + 8 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (65280452061887) and next prime (65280452061889).

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (65280452061887) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 947473456 + ... + 947542352.

Almost surely, 2^{65280452061888} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65280452061888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110872707870600).

65280452061888 is an abundant number, since it is smaller than the sum of its proper divisors (156464963679312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65280452061888 is a wasteful number, since it uses less digits than its factorization.

65280452061888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69557 (or 69537 counting only the distinct ones).

The product of its (nonzero) digits is 58982400, while the sum is 63.

The spelling of 65280452061888 in words is "sixty-five trillion, two hundred eighty billion, four hundred fifty-two million, sixty-one thousand, eight hundred eighty-eight".